How severe is CVE-2024-40521?

CVE-2024-40521 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-40521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-40521?

CVE-2024-40521 affects Seacms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-40521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-40521 have an EU (EUVD) identifier?

Yes. CVE-2024-40521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38500.

When was CVE-2024-40521 published?

CVE-2024-40521 was published on 2024-07-12 and last updated on 2026-06-17.

CVE-2024-40521

CVE-2024-40521 is a high-severity vulnerability in Seacms with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-38500
Weakness: CWE-94
Affected product: Seacms
Published: 2024-07-12
Last modified: 2026-06-17

Description

SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is due to the fact that although admin_template.php imposes certain restrictions on the edited file, attackers can still bypass the restrictions and write code in some way, allowing authenticated attackers to exploit the vulnerability to execute arbitrary commands and gain system privileges.

Frequently asked questions

What is CVE-2024-40521?: SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is due to the fact that although admin_template.php imposes certain restrictions on the edited file, attackers can still bypass the restrictions and write code in some way, allowing authenticated attackers to exploit the vulnerability to execute arbitrary commands and gain system privileges.
How severe is CVE-2024-40521?: CVE-2024-40521 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-40521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-40521?: CVE-2024-40521 affects Seacms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-40521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-40521 have an EU (EUVD) identifier?: Yes. CVE-2024-40521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38500.
When was CVE-2024-40521 published?: CVE-2024-40521 was published on 2024-07-12 and last updated on 2026-06-17.

References

https://gitee.com/fushuling/cve/blob/master/%20SeaCMS%2012.9%20admin_template.php%20%20code%20injection.md

Affected products (1)

cpe:2.3:a:seacms:seacms:12.9:*:*:*:*:*:*:*

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